I have upgraded the site to Drupal 7, which is a major version update. It did not go all too well. The update was required to keep the site online because of security issues with Drupal version 6.
Larson's and ISUS image gallery are not available --implemented as Slideshow
Audio player is not loading (not sure why). --FIXED, see Library "Audio Lectures" menu.
Videos do not work (swfplayer module has not been released for D7). --WORKING (created module, works with Firefox but does some odd things in IE).
Access problems with the PDF scans of Reciprocity and ISUS News are fixed (available to current ISUS members only).
Store is not able to retrieve shipping quotes, so purchases cannot be completed yet.
--TESTING (fix installed)
Missing Account info and Logout are now back up on top of each page.
If you spot anything else, particularly PHP error messages, please drop a comment in reply here or use Contact. Thanks.